Amino acid composition and protein quality of native chicken meat fed green feed

Abstract

Abstract Amino acid composition can be used to determine protein quality, by comparing with reference amino acid values. This research was conducted with the aim to evaluate and study the composition of amino acids and protein quality of native chicken meat by giving Indigofera zollingeriana powder (IP) and turmeric phytobiotics (TP) as green feed. Treatment ration study: R0 = control ration (research ration without green feed; Treatment R1 = substitution of 10% protein of soybean meal with IP + 2.5% TP; Treatment R2 = substitution 15% of soybean meal protein with IP + 2.5% TP, treatment R3 = substitution of 20% protein of soybean meal with IP + 2.5% TP. The variables observed were amino acids composition and protein quality of native chicken meat. The raw material for rations was prepared according to the needs of native chicken with iso-protein and iso-energy. The study used 160 native chickens which were divided into 4 treatments and 5 replications using a completely randomized design (CRD). Chemical scores were 78.91%, 76.39%, 82.66% and 82.66% for the treatment of R0, R1, R2 and R3 respectively, and amino acid scores increased along with the increase in substitution of soybean meal with indigofera powder protein be respectively 98.29%; 97.78%; 102.59% and 107.85%. It concluded that substituting 20% soybean meal protein with indigofera powder protein and added 2.5% turmeric phytobiotic gives a better chemical score and amino acid score.

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